Profile: John McKenna

John McKenna was a participant or observer in the following events:

Humayun Khan (no relation to nuclear scientist A. Q. Khan) of Pakistan e-mails Israeli electronics expert Asher Karni, who is living in South Africa, with a request to purchase 200 dual purpose US-manufactured triggered spark gaps. Such devices are typically used in high-tech medical machines to break up kidney stones, but they can also be used to detonate a nuclear weapon. Khan asks Karni not to reveal that the end destination is Pakistan. Karni responds a few days later, informing Khan that he cannot fulfill the order because the US government would require an expert license for the deal. “I know it is difficult, but that’s how we came to know each other,” Khan replies. “Please help to negotiate this from any other source.” Nine hours later, Karni responds in another email: “Will do.” Karni places the order, indicating that the destination is Baragwanath Hospital in Soweto, South Africa. According to US special agent John McKenna, the emails are intercepted by an informant in South Africa who promptly forwards them to the US Commerce Department. [Mother Jones, 5/2005; PBS, 7/27/2005]

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